private void buttonLogin_Click(object sender, RoutedEventArgs e)
        {
            if (comboBoxPermission.SelectedIndex == 0)
            {
                if (Manager.ConfigManager.Instance.Config.MaintenancePassword !=
                    passwordBox1.Password)
                {
                    MessageBox.Show(Manager.StringResourceManager.Instance.Resource.GUI.MainResource.UserSelectWindow.InvalidPassword);
                    return;
                }

                Permission = Equipment.StandardEquipment.UserPermission.MAINTENANCE;
            }
            else if (comboBoxPermission.SelectedIndex == 1)
            {
                if (Manager.ConfigManager.Instance.Config.AdministratorPassword !=
                    passwordBox1.Password)
                {
                    MessageBox.Show(Manager.StringResourceManager.Instance.Resource.GUI.MainResource.UserSelectWindow.InvalidPassword);
                    return;
                }

                Permission = Equipment.StandardEquipment.UserPermission.MASTER;
            }
            else
            {
                Permission = Equipment.StandardEquipment.UserPermission.OPERATOR;
            }

            DialogResult = true;
            Close();
        }
        private void buttonLogin_Click(object sender, RoutedEventArgs e)
        {
            if (comboBoxPermission.SelectedIndex == 0)
            {
                if (Manager.ConfigManager.Instance.Config.AdministratorPassword !=
                    passwordBox1.Password)
                {
                    var msg = Utility.UtilityClass.GetStringResource(this, "InvalidPassword", "Invalid password");
                    MessageBox.Show(msg);
                    return;
                }

                Permission = Equipment.StandardEquipment.UserPermission.MASTER;
            }

            DialogResult = true;
            Close();
        }